Pivot SQL with top 1 - sql

Question

I have a simple table, with scan data in rows.
I want to pivot the dataset, with the first scan in each phase_key.
Into this:
I use this sql:
select
d.shipment_id,
d.carrier_reference,
e.phase_key,
e.event,
CONVERT(DATETIME,e.time) AS ScanDate
from
data d
inner join event e on d.id = e.data_id
where
shipment_id = '99156136'
order by e.time asc
I have tried using the suggested sql. (adding 1 id, to verify format. But it loads without the code suggested from #gotqn.
DECLARE #DynammicTSQLStatement NVARCHAR(MAX)
,#DynamicPIVOTColumns NVARCHAR(MAX);
SELECT #DynamicPIVOTColumns = STRING_AGG(CAST(QUOTENAME([phase_key]) AS VARCHAR(MAX)), ',') WITHIN GROUP (ORDER BY [phase_key])
FROM
(
SELECT DISTINCT [phase_key]
FROM data d
inner join event e on d.id = e.data_id
) DS ([phase_key]);
SET #DynammicTSQLStatement = N'
SELECT *
FROM
(
SELECT shipment_id
,phase_key
,time
FROM data d
inner join event e on d.id = e.data_id
where
shipment_id = "99156136"
) DS
PIVOT
(
MAX([time]) FOR [phase_key] IN (' + #DynamicPIVOTColumns + ')
) PVT';
EXEC sp_executesql #DynammicTSQLStatement;
But after 2mins it still have not loaded the 1. id om trying as a sample.

Answer 1

Try this:
DECLARE #DynammicTSQLStatement NVARCHAR(MAX)
,#DynamicPIVOTColumns NVARCHAR(MAX);
SELECT #DynamicPIVOTColumns = STRING_AGG(CAST(QUOTENAME([phase_key]) AS VARCHAR(MAX)), ',') WITHIN GROUP (ORDER BY [phase_key])
FROM
(
SELECT DISTINCT [phase_key]
FROM [my_table]
) DS ([phase_key]);
SET #DynammicTSQLStatement = N'
SELECT *
FROM
(
SELECT shipment_id
,phase_key
,ScanDate
FROM [my_table]
) DS
PIVOT
(
MAX([ScanDate]) FOR [phase_key] IN (' + #DynamicPIVOTColumns + ')
) PVT';
EXEC sp_executesql #DynammicTSQLStatement;